电子磁罗盘测量误差校正方法研究

针对磁航向测量中存在的各种误差,分析了电子磁罗盘（EMC）系统误差的形成原因与机理,在此基础上系统地研究了在任意姿态下电子磁罗盘磁航向误差校正问题,并且具体给出了2种误差系数的求解方法以及相应的误差补偿方法。实验结果表明,在椭圆假设法中除去该方法不能补偿的安装误差后,其补偿效果与给定基准法相当,二者都能更为简单有效地实现磁航向误差的校正、误差自动补偿和自动校准,且补偿精度高、成本低。

Study on new error compensation methods of EMC

Aiming at the measurement errors of magnetic heading, the cause and mechanism of EMC system errors are studied. The problem of EMC error compensation at any attitudes is addressed. Based on studying the measurement principles and causes of deviation of EMC, two novel methods for error coefficient solution and error compensation are presented. Experiment results indicate that ellipse hypothesis method has the compensation effects similar to given benchmark method has, but it can not eliminate installation error; both of the methods can realize magnetic heading error correction, automatic compensation and automatic calibration simply and effectively and have the features of high compensation accuracy and low cost.